diff --git a/config.h.in b/config.h.in
--- a/config.h.in
+++ b/config.h.in
@@ -30,6 +30,9 @@
 /* Define to the one symbol short name of this package. */
 #undef PACKAGE_TARNAME
 
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
 /* Define to the version of this package. */
 #undef PACKAGE_VERSION
 
diff --git a/configure b/configure
--- a/configure
+++ b/configure
@@ -1,11 +1,9 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.67.
+# Generated by GNU Autoconf 2.69.
 #
 #
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
-# Foundation, Inc.
+# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
 #
 #
 # This configure script is free software; the Free Software Foundation
@@ -89,6 +87,7 @@
 IFS=" ""	$as_nl"
 
 # Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
 case $0 in #((
   *[\\/]* ) as_myself=$0 ;;
   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -133,6 +132,31 @@
 # CDPATH.
 (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 
+# Use a proper internal environment variable to ensure we don't fall
+  # into an infinite loop, continuously re-executing ourselves.
+  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+    _as_can_reexec=no; export _as_can_reexec;
+    # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+as_fn_exit 255
+  fi
+  # We don't want this to propagate to other subprocesses.
+          { _as_can_reexec=; unset _as_can_reexec;}
 if test "x$CONFIG_SHELL" = x; then
   as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
   emulate sh
@@ -166,7 +190,8 @@
 else
   exitcode=1; echo positional parameters were not saved.
 fi
-test x\$exitcode = x0 || exit 1"
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
   as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
   as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
   eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
@@ -210,14 +235,25 @@
 
 
       if test "x$CONFIG_SHELL" != x; then :
-  # We cannot yet assume a decent shell, so we have to provide a
-	# neutralization value for shells without unset; and this also
-	# works around shells that cannot unset nonexistent variables.
-	BASH_ENV=/dev/null
-	ENV=/dev/null
-	(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-	export CONFIG_SHELL
-	exec "$CONFIG_SHELL" "$as_myself" ${1+"$@"}
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
 fi
 
     if test x$as_have_required = xno; then :
@@ -319,6 +355,14 @@
 
 
 } # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
 # as_fn_append VAR VALUE
 # ----------------------
 # Append the text in VALUE to the end of the definition contained in VAR. Take
@@ -440,6 +484,10 @@
   chmod +x "$as_me.lineno" ||
     { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
 
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
   # Don't try to exec as it changes $[0], causing all sort of problems
   # (the dirname of $[0] is not the place where we might find the
   # original and so on.  Autoconf is especially sensitive to this).
@@ -474,16 +522,16 @@
     # ... but there are two gotchas:
     # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
     # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -p'.
+    # In both cases, we have to default to `cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-      as_ln_s='cp -p'
+      as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
     as_ln_s=ln
   else
-    as_ln_s='cp -p'
+    as_ln_s='cp -pR'
   fi
 else
-  as_ln_s='cp -p'
+  as_ln_s='cp -pR'
 fi
 rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
 rmdir conf$$.dir 2>/dev/null
@@ -495,28 +543,8 @@
   as_mkdir_p=false
 fi
 
-if test -x / >/dev/null 2>&1; then
-  as_test_x='test -x'
-else
-  if ls -dL / >/dev/null 2>&1; then
-    as_ls_L_option=L
-  else
-    as_ls_L_option=
-  fi
-  as_test_x='
-    eval sh -c '\''
-      if test -d "$1"; then
-	test -d "$1/.";
-      else
-	case $1 in #(
-	-*)set "./$1";;
-	esac;
-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
-	???[sx]*):;;*)false;;esac;fi
-    '\'' sh
-  '
-fi
-as_executable_p=$as_test_x
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
 as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
@@ -1032,7 +1060,7 @@
     $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
     expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
       $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
-    : ${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
     ;;
 
   esac
@@ -1083,8 +1111,6 @@
 if test "x$host_alias" != x; then
   if test "x$build_alias" = x; then
     cross_compiling=maybe
-    $as_echo "$as_me: WARNING: if you wanted to set the --build type, don't use --host.
-    If a cross compiler is detected then cross compile mode will be used" >&2
   elif test "x$build_alias" != "x$host_alias"; then
     cross_compiling=yes
   fi
@@ -1324,9 +1350,9 @@
 if $ac_init_version; then
   cat <<\_ACEOF
 configure
-generated by GNU Autoconf 2.67
+generated by GNU Autoconf 2.69
 
-Copyright (C) 2010 Free Software Foundation, Inc.
+Copyright (C) 2012 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
@@ -1370,7 +1396,7 @@
 
 	ac_retval=1
 fi
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_compile
@@ -1402,7 +1428,7 @@
 	 test ! -s conftest.err
        } && test -s conftest$ac_exeext && {
 	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
+	 test -x conftest$ac_exeext
        }; then :
   ac_retval=0
 else
@@ -1416,7 +1442,7 @@
   # interfere with the next link command; also delete a directory that is
   # left behind by Apple's compiler.  We do this before executing the actions.
   rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
   as_fn_set_status $ac_retval
 
 } # ac_fn_c_try_link
@@ -1429,7 +1455,7 @@
   as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
 $as_echo_n "checking for $2... " >&6; }
-if eval "test \"\${$3+set}\"" = set; then :
+if eval \${$3+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -1484,7 +1510,7 @@
 eval ac_res=\$$3
 	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
 $as_echo "$ac_res" >&6; }
-  eval $as_lineno_stack; test "x$as_lineno_stack" = x && { as_lineno=; unset as_lineno;}
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
 
 } # ac_fn_c_check_func
 cat >config.log <<_ACEOF
@@ -1492,7 +1518,7 @@
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by $as_me, which was
-generated by GNU Autoconf 2.67.  Invocation command line was
+generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
 
@@ -1750,7 +1776,7 @@
       || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "failed to load site script $ac_site_file
-See \`config.log' for more details" "$LINENO" 5 ; }
+See \`config.log' for more details" "$LINENO" 5; }
   fi
 done
 
@@ -1883,7 +1909,7 @@
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
 $as_echo_n "checking build system type... " >&6; }
-if test "${ac_cv_build+set}" = set; then :
+if ${ac_cv_build+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_build_alias=$build_alias
@@ -1899,7 +1925,7 @@
 $as_echo "$ac_cv_build" >&6; }
 case $ac_cv_build in
 *-*-*) ;;
-*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5 ;;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
 esac
 build=$ac_cv_build
 ac_save_IFS=$IFS; IFS='-'
@@ -1996,7 +2022,7 @@
 set dummy ghc; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_GHC+set}" = set; then :
+if ${ac_cv_prog_GHC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$GHC"; then
@@ -2008,7 +2034,7 @@
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_GHC="ghc"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -2119,7 +2145,7 @@
 set dummy ${ac_tool_prefix}gcc; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then :
+if ${ac_cv_prog_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2131,7 +2157,7 @@
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -2159,7 +2185,7 @@
 set dummy gcc; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then :
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -2171,7 +2197,7 @@
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="gcc"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -2212,7 +2238,7 @@
 set dummy ${ac_tool_prefix}cc; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then :
+if ${ac_cv_prog_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2224,7 +2250,7 @@
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}cc"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -2252,7 +2278,7 @@
 set dummy cc; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then :
+if ${ac_cv_prog_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2265,7 +2291,7 @@
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
        ac_prog_rejected=yes
        continue
@@ -2311,7 +2337,7 @@
 set dummy $ac_tool_prefix$ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_CC+set}" = set; then :
+if ${ac_cv_prog_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$CC"; then
@@ -2323,7 +2349,7 @@
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -2355,7 +2381,7 @@
 set dummy $ac_prog; ac_word=$2
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 $as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_CC+set}" = set; then :
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   if test -n "$ac_ct_CC"; then
@@ -2367,7 +2393,7 @@
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -2410,7 +2436,7 @@
 test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "no acceptable C compiler found in \$PATH
-See \`config.log' for more details" "$LINENO" 5 ; }
+See \`config.log' for more details" "$LINENO" 5; }
 
 # Provide some information about the compiler.
 $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
@@ -2525,7 +2551,7 @@
 { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error 77 "C compiler cannot create executables
-See \`config.log' for more details" "$LINENO" 5 ; }
+See \`config.log' for more details" "$LINENO" 5; }
 else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 $as_echo "yes" >&6; }
@@ -2568,7 +2594,7 @@
   { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of executables: cannot compile and link
-See \`config.log' for more details" "$LINENO" 5 ; }
+See \`config.log' for more details" "$LINENO" 5; }
 fi
 rm -f conftest conftest$ac_cv_exeext
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
@@ -2627,7 +2653,7 @@
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "cannot run C compiled programs.
 If you meant to cross compile, use \`--host'.
-See \`config.log' for more details" "$LINENO" 5 ; }
+See \`config.log' for more details" "$LINENO" 5; }
     fi
   fi
 fi
@@ -2638,7 +2664,7 @@
 ac_clean_files=$ac_clean_files_save
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
 $as_echo_n "checking for suffix of object files... " >&6; }
-if test "${ac_cv_objext+set}" = set; then :
+if ${ac_cv_objext+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -2679,7 +2705,7 @@
 { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
 $as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "cannot compute suffix of object files: cannot compile
-See \`config.log' for more details" "$LINENO" 5 ; }
+See \`config.log' for more details" "$LINENO" 5; }
 fi
 rm -f conftest.$ac_cv_objext conftest.$ac_ext
 fi
@@ -2689,7 +2715,7 @@
 ac_objext=$OBJEXT
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
 $as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
-if test "${ac_cv_c_compiler_gnu+set}" = set; then :
+if ${ac_cv_c_compiler_gnu+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
@@ -2726,7 +2752,7 @@
 ac_save_CFLAGS=$CFLAGS
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
 $as_echo_n "checking whether $CC accepts -g... " >&6; }
-if test "${ac_cv_prog_cc_g+set}" = set; then :
+if ${ac_cv_prog_cc_g+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_save_c_werror_flag=$ac_c_werror_flag
@@ -2804,7 +2830,7 @@
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
 $as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
-if test "${ac_cv_prog_cc_c89+set}" = set; then :
+if ${ac_cv_prog_cc_c89+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_cv_prog_cc_c89=no
@@ -2813,8 +2839,7 @@
 /* end confdefs.h.  */
 #include <stdarg.h>
 #include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
+struct stat;
 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
 struct buf { int x; };
 FILE * (*rcsopen) (struct buf *, struct stat *, int);
@@ -2903,7 +2928,7 @@
 for ac_func in arc4random
 do :
   ac_fn_c_check_func "$LINENO" "arc4random" "ac_cv_func_arc4random"
-if test "x$ac_cv_func_arc4random" = x""yes; then :
+if test "x$ac_cv_func_arc4random" = xyes; then :
   cat >>confdefs.h <<_ACEOF
 #define HAVE_ARC4RANDOM 1
 _ACEOF
@@ -2929,7 +2954,7 @@
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
 $as_echo_n "checking for a BSD-compatible install... " >&6; }
 if test -z "$INSTALL"; then
-if test "${ac_cv_path_install+set}" = set; then :
+if ${ac_cv_path_install+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -2949,7 +2974,7 @@
     # by default.
     for ac_prog in ginstall scoinst install; do
       for ac_exec_ext in '' $ac_executable_extensions; do
-	if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then
+	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
 	  if test $ac_prog = install &&
 	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
 	    # AIX install.  It has an incompatible calling convention.
@@ -3073,10 +3098,21 @@
      :end' >>confcache
 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
   if test -w "$cache_file"; then
-    test "x$cache_file" != "x/dev/null" &&
+    if test "x$cache_file" != "x/dev/null"; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
 $as_echo "$as_me: updating cache $cache_file" >&6;}
-    cat confcache >$cache_file
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
   else
     { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
 $as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
@@ -3108,7 +3144,7 @@
 
 
 
-: ${CONFIG_STATUS=./config.status}
+: "${CONFIG_STATUS=./config.status}"
 ac_write_fail=0
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
@@ -3209,6 +3245,7 @@
 IFS=" ""	$as_nl"
 
 # Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
 case $0 in #((
   *[\\/]* ) as_myself=$0 ;;
   *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
@@ -3404,16 +3441,16 @@
     # ... but there are two gotchas:
     # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
     # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -p'.
+    # In both cases, we have to default to `cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-      as_ln_s='cp -p'
+      as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
     as_ln_s=ln
   else
-    as_ln_s='cp -p'
+    as_ln_s='cp -pR'
   fi
 else
-  as_ln_s='cp -p'
+  as_ln_s='cp -pR'
 fi
 rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
 rmdir conf$$.dir 2>/dev/null
@@ -3473,29 +3510,17 @@
   as_mkdir_p=false
 fi
 
-if test -x / >/dev/null 2>&1; then
-  as_test_x='test -x'
-else
-  if ls -dL / >/dev/null 2>&1; then
-    as_ls_L_option=L
-  else
-    as_ls_L_option=
-  fi
-  as_test_x='
-    eval sh -c '\''
-      if test -d "$1"; then
-	test -d "$1/.";
-      else
-	case $1 in #(
-	-*)set "./$1";;
-	esac;
-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
-	???[sx]*):;;*)false;;esac;fi
-    '\'' sh
-  '
-fi
-as_executable_p=$as_test_x
 
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
 # Sed expression to map a string onto a valid CPP name.
 as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
 
@@ -3516,7 +3541,7 @@
 # values after options handling.
 ac_log="
 This file was extended by $as_me, which was
-generated by GNU Autoconf 2.67.  Invocation command line was
+generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -3578,10 +3603,10 @@
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
 config.status
-configured by $0, generated by GNU Autoconf 2.67,
+configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2010 Free Software Foundation, Inc.
+Copyright (C) 2012 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -3670,7 +3695,7 @@
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 if \$ac_cs_recheck; then
-  set X '$SHELL' '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
   shift
   \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
   CONFIG_SHELL='$SHELL'
@@ -3704,7 +3729,7 @@
     "testsuite/makewith/io/TestIO.conf") CONFIG_FILES="$CONFIG_FILES testsuite/makewith/io/TestIO.conf" ;;
     "testsuite/makewith/unsafeio/Unsafe.conf") CONFIG_FILES="$CONFIG_FILES testsuite/makewith/unsafeio/Unsafe.conf" ;;
 
-  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5 ;;
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
   esac
 done
 
@@ -3726,9 +3751,10 @@
 # after its creation but before its name has been assigned to `$tmp'.
 $debug ||
 {
-  tmp=
+  tmp= ac_tmp=
   trap 'exit_status=$?
-  { test -z "$tmp" || test ! -d "$tmp" || rm -fr "$tmp"; } && exit $exit_status
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
 ' 0
   trap 'as_fn_exit 1' 1 2 13 15
 }
@@ -3736,12 +3762,13 @@
 
 {
   tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
-  test -n "$tmp" && test -d "$tmp"
+  test -d "$tmp"
 }  ||
 {
   tmp=./conf$$-$RANDOM
   (umask 077 && mkdir "$tmp")
 } || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
 
 # Set up the scripts for CONFIG_FILES section.
 # No need to generate them if there are no CONFIG_FILES.
@@ -3763,7 +3790,7 @@
   ac_cs_awk_cr=$ac_cr
 fi
 
-echo 'BEGIN {' >"$tmp/subs1.awk" &&
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
 _ACEOF
 
 
@@ -3791,7 +3818,7 @@
 rm -f conf$$subs.sh
 
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-cat >>"\$tmp/subs1.awk" <<\\_ACAWK &&
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
 _ACEOF
 sed -n '
 h
@@ -3839,7 +3866,7 @@
 rm -f conf$$subs.awk
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 _ACAWK
-cat >>"\$tmp/subs1.awk" <<_ACAWK &&
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
   for (key in S) S_is_set[key] = 1
   FS = ""
 
@@ -3871,7 +3898,7 @@
   sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
 else
   cat
-fi < "$tmp/subs1.awk" > "$tmp/subs.awk" \
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
   || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
 _ACEOF
 
@@ -3905,7 +3932,7 @@
 # No need to generate them if there are no CONFIG_HEADERS.
 # This happens for instance with `./config.status Makefile'.
 if test -n "$CONFIG_HEADERS"; then
-cat >"$tmp/defines.awk" <<\_ACAWK ||
+cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
 BEGIN {
 _ACEOF
 
@@ -3917,8 +3944,8 @@
 # handling of long lines.
 ac_delim='%!_!# '
 for ac_last_try in false false :; do
-  ac_t=`sed -n "/$ac_delim/p" confdefs.h`
-  if test -z "$ac_t"; then
+  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
+  if test -z "$ac_tt"; then
     break
   elif $ac_last_try; then
     as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
@@ -4019,7 +4046,7 @@
   esac
   case $ac_mode$ac_tag in
   :[FHL]*:*);;
-  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5 ;;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
   :[FH]-) ac_tag=-:-;;
   :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
   esac
@@ -4038,7 +4065,7 @@
     for ac_f
     do
       case $ac_f in
-      -) ac_f="$tmp/stdin";;
+      -) ac_f="$ac_tmp/stdin";;
       *) # Look for the file first in the build tree, then in the source tree
 	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
 	 # because $ac_f cannot contain `:'.
@@ -4047,7 +4074,7 @@
 	   [\\/$]*) false;;
 	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
 	   esac ||
-	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5 ;;
+	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
       esac
       case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
       as_fn_append ac_file_inputs " '$ac_f'"
@@ -4073,8 +4100,8 @@
     esac
 
     case $ac_tag in
-    *:-:* | *:-) cat >"$tmp/stdin" \
-      || as_fn_error $? "could not create $ac_file" "$LINENO" 5  ;;
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
     esac
     ;;
   esac
@@ -4204,21 +4231,22 @@
 s&@INSTALL@&$ac_INSTALL&;t t
 $ac_datarootdir_hack
 "
-eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$tmp/subs.awk" >$tmp/out \
-  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
 
 test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
-  { ac_out=`sed -n '/\${datarootdir}/p' "$tmp/out"`; test -n "$ac_out"; } &&
-  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' "$tmp/out"`; test -z "$ac_out"; } &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
   { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&5
 $as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&2;}
 
-  rm -f "$tmp/stdin"
+  rm -f "$ac_tmp/stdin"
   case $ac_file in
-  -) cat "$tmp/out" && rm -f "$tmp/out";;
-  *) rm -f "$ac_file" && mv "$tmp/out" "$ac_file";;
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
   esac \
   || as_fn_error $? "could not create $ac_file" "$LINENO" 5
  ;;
@@ -4229,20 +4257,20 @@
   if test x"$ac_file" != x-; then
     {
       $as_echo "/* $configure_input  */" \
-      && eval '$AWK -f "$tmp/defines.awk"' "$ac_file_inputs"
-    } >"$tmp/config.h" \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
+    } >"$ac_tmp/config.h" \
       || as_fn_error $? "could not create $ac_file" "$LINENO" 5
-    if diff "$ac_file" "$tmp/config.h" >/dev/null 2>&1; then
+    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
       { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
 $as_echo "$as_me: $ac_file is unchanged" >&6;}
     else
       rm -f "$ac_file"
-      mv "$tmp/config.h" "$ac_file" \
+      mv "$ac_tmp/config.h" "$ac_file" \
 	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
     fi
   else
     $as_echo "/* $configure_input  */" \
-      && eval '$AWK -f "$tmp/defines.awk"' "$ac_file_inputs" \
+      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
       || as_fn_error $? "could not create -" "$LINENO" 5
   fi
  ;;
diff --git a/plugins.cabal b/plugins.cabal
--- a/plugins.cabal
+++ b/plugins.cabal
@@ -1,6 +1,6 @@
 name:               plugins
-version:            1.5.6.0
-homepage:           http://hub.darcs.net/stepcut/plugins
+version:            1.5.7
+homepage:           https://github.com/stepcut/plugins
 synopsis:           Dynamic linking for Haskell and C objects
 description:        Dynamic linking and runtime evaluation of Haskell,
                     and C, including dependency chasing and package resolution.
@@ -25,6 +25,7 @@
                   , GHC == 7.8.*
                   , GHC == 7.10.*
                   , GHC == 8.0.*
+                  , GHC == 8.2.*
 extra-source-files: config.guess, config.h.in, config.mk.in, config.sub,
                     configure, configure.ac, install.sh, Makefile,
                     testsuite/makewith/io/TestIO.conf.in,
diff --git a/src/System/Eval/Haskell.hs b/src/System/Eval/Haskell.hs
--- a/src/System/Eval/Haskell.hs
+++ b/src/System/Eval/Haskell.hs
@@ -239,7 +239,7 @@
         x = ident ()
 
 ident () = unsafePerformIO $
-            sequence (take 3 (repeat $ getStdRandom (randomR (97,122)) >>= return . chr))
+            sequence (Prelude.take 3 (repeat $ getStdRandom (randomR (97,122)) >>= return . chr))
 
 -- ---------------------------------------------------------------------
 -- unsafe wrapper
diff --git a/src/System/Plugins/Consts.hs b/src/System/Plugins/Consts.hs
--- a/src/System/Plugins/Consts.hs
+++ b/src/System/Plugins/Consts.hs
@@ -43,8 +43,8 @@
 
 -- | This code is from runtime_loader:
 --   The extension used by system modules.
-sysPkgSuffix = ".o"
-objSuf       = sysPkgSuffix
+sysPkgSuffix = ".a"
+objSuf       = ".o"
 hiSuf        = ".hi"
 hsSuf        = ".hs"
 #if defined(CYGWIN) || defined(__MINGW32__)
diff --git a/src/System/Plugins/Env.hs b/src/System/Plugins/Env.hs
--- a/src/System/Plugins/Env.hs
+++ b/src/System/Plugins/Env.hs
@@ -43,6 +43,7 @@
         union,
         addStaticPkg,
         isStaticPkg,
+        rmStaticPkg,
         grabDefaultPkgConf,
         readPackageConf,
         lookupPkg
@@ -69,7 +70,19 @@
 
 import Control.Concurrent.MVar  ( MVar(), newMVar, withMVar )
 
-import Distribution.Package hiding (depends, packageName, PackageName(..)
+import GHC.Paths (libdir)
+import DynFlags (
+#if MIN_VERSION_ghc(7,8,0)
+  Way(WayDyn), dynamicGhc, ways,
+#endif
+  defaultDynFlags, initDynFlags)
+import SysTools (initSysTools)
+
+import Distribution.Package hiding (
+#if MIN_VERSION_ghc(7,6,0)
+                                     Module,
+#endif
+                                     depends, packageName, PackageName(..)
 #if MIN_VERSION_ghc(7,10,0)
                                    , installedPackageId
 #endif
@@ -358,6 +371,12 @@
 isStaticPkg :: PackageName -> IO Bool
 isStaticPkg pkg = withStaticPkgEnv env $ \set -> return $ S.member pkg set
 
+rmStaticPkg :: String -> IO Bool
+rmStaticPkg pkg = do
+  (willRemove, s) <- withStaticPkgEnv env $ \s -> return (S.member pkg s, s)
+  if not willRemove then return False
+    else do modifyStaticPkgEnv env $ \s' -> return $ S.delete pkg s'
+            return True
 --
 -- Package path, given a package name, look it up in the environment and
 -- return the path to all the libraries needed to load this package.
@@ -382,7 +401,9 @@
       go :: [PackageName] -> PackageName -> IO ([FilePath],[FilePath])
       go seen p = do
         (ps, (f, g)) <- lookupPkg' p
-        static <- isStaticPkg p
+        static <- if not (null f) && null g
+                  then addStaticPkg p >> return True
+                  else isStaticPkg p
         (f', g') <- liftM unzip $ mapM (go (nub $ seen ++ ps)) (ps \\ seen)
         return $ (nub $ (concat f') ++ f, if static then [] else nub $ (concat g') ++ g)
 
@@ -444,7 +465,16 @@
 #endif
                 -- If we're loading dynamic libs we need the cbits to appear before the
                 -- real packages.
-                libs <- mapM (findHSlib libdirs) (cbits ++ hslibs)
+                settings <- initSysTools (Just libdir)
+                dflags <- initDynFlags $ defaultDynFlags settings
+                libs <- mapM (findHSlib
+#if MIN_VERSION_ghc(7,8,0)
+                              (WayDyn `elem` ways dflags || dynamicGhc)
+#else
+                              False
+#endif
+                              libdirs)
+                             (cbits ++ hslibs)
 #if defined(CYGWIN) || defined(__MINGW32__)
                 windowsos <- catch (getEnv "OS")
                            (\e -> if isDoesNotExistError e then return "Windows_98" else ioError e)
@@ -490,23 +520,24 @@
                   if b then return $ Just l     -- found it!
                        else findHSlib' dirs lib
 
-        findHSslib dirs lib = findHSlib' dirs $ lib ++ sysPkgSuffix
+        findHSslib dirs lib = findHSlib' dirs $ "lib" ++ lib ++ sysPkgSuffix
         findHSdlib dirs lib = findHSlib' dirs $ mkDynPkgName lib
 
-        -- Problem: sysPkgSuffix  is ".o", but extra libraries could be
-        -- ".so"
-        -- Solution: first look for static library, if we don't find it
-        -- look for a dynamic version.
-        findHSlib :: [FilePath] -> String -> IO (Either String HSLib)
-        findHSlib dirs lib = do
-            static <- findHSslib dirs lib
-            case static of
-                Just file -> return $ Right $ Static file
-                Nothing   -> do
-                    dynamic <- findHSdlib dirs lib
-                    case dynamic of
-                        Just file -> return $ Right $ Dynamic file
-                        Nothing   -> return $ Left lib
+        findHSlib :: Bool -> [FilePath] -> String -> IO (Either String HSLib)
+        findHSlib dynonly dirs lib = do
+            -- Problem: sysPkgSuffix  is ".a", but system packages could be dynamic, and
+            -- extra dynamic libraries could be needed even when using normal (static) linkage.
+            -- Solution: look for dynamic libraries only if using -dynamic; otherwise, use static
+            -- and add any other dynamic libraries found.
+            dl <- findHSdlib dirs lib
+            let rdl = case dl of
+                  Just file -> Right $ Dynamic file
+                  Nothing   -> Left lib
+            if dynonly then return rdl else do
+              rsl <- findHSslib dirs lib
+              return $ case rsl of
+                Just file -> Right $ Static file
+                Nothing   -> rdl
 
         findDLL :: [FilePath] -> String -> IO (Either String FilePath)
         findDLL [] lib         = return (Left lib)
diff --git a/src/System/Plugins/Load.hs b/src/System/Plugins/Load.hs
--- a/src/System/Plugins/Load.hs
+++ b/src/System/Plugins/Load.hs
@@ -70,12 +70,17 @@
 import System.Plugins.LoadTypes
 
 -- import Language.Hi.Parser
+import Encoding (zEncodeString)
 import BinIface
 import HscTypes
 
 import Module (moduleName, moduleNameString)
 #if MIN_VERSION_ghc(8,0,0)
+#if MIN_VERSION_Cabal(2,0,0)
+import Module (installedUnitIdString)
+#else
 import Module (unitIdString)
+#endif
 #elif MIN_VERSION_ghc(7,10,0)
 import Module (packageKeyString)
 #else
@@ -91,6 +96,7 @@
 import Data.List                ( isSuffixOf, nub, nubBy )
 import Control.Monad            ( when, filterM, liftM )
 import System.Directory         ( doesFileExist, removeFile )
+import Foreign.C                ( CInt(..) )
 import Foreign.C.String         ( CString, withCString, peekCString )
 
 #if !MIN_VERSION_ghc(7,2,0)
@@ -173,7 +179,7 @@
      -> IO (LoadStatus a)
 
 load obj incpaths pkgconfs sym = do
-    initLinker
+    initLinker_ $ fromIntegral 0
 
     -- load extra package information
     mapM_ addPkgConf pkgconfs
@@ -443,7 +449,8 @@
 -- | Call the initLinker function first, before calling any of the other
 -- functions in this module - otherwise you\'ll get unresolved symbols.
 
--- initLinker :: IO ()
+initLinker :: IO ()
+initLinker = initLinker_ $ fromIntegral 0
 -- our initLinker transparently calls the one in GHC
 
 --
@@ -466,8 +473,8 @@
               -> String
               -> IO (Maybe a)
 loadFunction__ pkg m valsym
-   = do let symbol = prefixUnderscore++(maybe "" (\p -> encode p++"_") pkg)
-                     ++encode m++"_"++(encode valsym)++"_closure"
+   = do let symbol = prefixUnderscore++(maybe "" (\p -> zEncodeString p++"_") pkg)
+                     ++zEncodeString m++"_"++(zEncodeString valsym)++"_closure"
 #if DEBUG
         putStrLn $ "Looking for <<"++symbol++">>"
 #endif
@@ -525,17 +532,21 @@
 
 loadObject' :: FilePath -> Key -> String -> IO Module
 loadObject' p ky k
-    | ("HSrts"++sysPkgSuffix) `isSuffixOf` p = return (emptyMod p)
-
-    | otherwise
     = do alreadyLoaded <- isLoaded k
          when (not alreadyLoaded) $ do
-              r <- withCString p c_loadObj
-              when (not r) (panic $ "Could not load module `"++p++"'")
-         addModule k (emptyMod p)   -- needs to Z-encode module name
-         return (emptyMod p)
+              let ld = if sysPkgSuffix `isSuffixOf` p
+                       then c_loadArchive
+                       else c_loadObj
+              r <- withCString p ld
+              when (not r) (panic $ "Could not load module or package `"++p++"'")
+         let hifile = replaceSuffix p hiSuf
+         exists <- doesFileExist hifile
+         hiface <- if exists then readBinIface' hifile else return undefined
+         let m = emptyMod p hiface
+         addModule k m
+         return m
 
-    where emptyMod q = Module q (mkModid q) Vanilla undefined ky
+    where emptyMod q hiface = Module q (mkModid q) Vanilla hiface ky
 
 -- |
 -- load a single object. no dependencies. You should know what you're
@@ -711,7 +722,11 @@
                 -- and find some packages to load, as well.
                 let ps = dep_pkgs ds
 #if MIN_VERSION_ghc(8,0,0)
+#if MIN_VERSION_Cabal(2,0,0)
+                ps' <- filterM loaded . map installedUnitIdString . nub $ map fst ps
+#else
                 ps' <- filterM loaded . map unitIdString . nub $ map fst ps
+#endif
 #elif MIN_VERSION_ghc(7,10,0)
                 ps' <- filterM loaded . map packageKeyString . nub $ map fst ps
 #elif MIN_VERSION_ghc(7,2,0)
@@ -758,11 +773,14 @@
 foreign import ccall unsafe "unloadObj"
    c_unloadObj :: CString -> IO Bool
 
+foreign import ccall unsafe "loadArchive"
+   c_loadArchive :: CString -> IO Bool
+
 foreign import ccall unsafe "resolveObjs"
    c_resolveObjs :: IO Bool
 
 foreign import ccall unsafe "addDLL"
    c_addDLL :: CString -> IO CString
 
-foreign import ccall unsafe "initLinker"
-   initLinker :: IO ()
+foreign import ccall unsafe "initLinker_"
+   initLinker_ :: CInt -> IO ()
diff --git a/src/System/Plugins/Utils.hs b/src/System/Plugins/Utils.hs
--- a/src/System/Plugins/Utils.hs
+++ b/src/System/Plugins/Utils.hs
@@ -57,21 +57,34 @@
 
   ) where
 
+
 #include "../../../config.h"
 
 import System.Plugins.Env              ( isLoaded )
 import System.Plugins.Consts           ( objSuf, hiSuf, tmpDir )
--- import qualified System.MkTemp ( mkstemps )
 
+import Foreign.C (CInt(..), CString, withCString)
+import Foreign.C.Error (Errno, eEXIST, getErrno, errnoToIOError)
+import System.Posix.Internals
+import System.Posix.Types (CMode)
+
 import Control.Exception               (IOException, catch)
+import Data.Bits
 import Data.Char
 import Data.List
-import Prelude hiding                  (catch)
+import Prelude hiding (catch)
 
-import System.IO
+import System.IO hiding (openBinaryTempFile, openTempFile)
+import System.Random (randomRIO)
+
+import GHC.IO.Encoding (getLocaleEncoding)
+import GHC.IO.Handle.FD
+import qualified GHC.IO.FD as FD
 import System.Environment           ( getEnv )
 import System.Directory             ( doesFileExist, getModificationTime, removeFile )
+import System.FilePath (pathSeparator)
 
+
 -- ---------------------------------------------------------------------
 -- some misc types we use
 
@@ -90,32 +103,130 @@
 
 
 -- ---------------------------------------------------------------------
--- | mkstemps.
+-- | openTempFile.
 --
--- We use the Haskell version now... it is faster than calling into
--- mkstemps(3).
+-- System.IO.openTempFile uses undesirable characters in its filenames, which
+-- breaks e.g. merge and other functions that try to compile Haskell source.
+-- Sadly, this means we must provide our own secure temporary file facility.
 --
 
--- mkstemps :: String -> Int -> IO (String,Handle)
--- mkstemps path slen = do
---         m_v <- System.MkTemp.mkstemps path slen
---         case m_v of Nothing -> error "mkstemps : couldn't create temp file"
---                     Just v' -> return v'
+openTempFile :: FilePath   -- ^ Directory in which to create the file
+             -> String     -- ^ File name prefix. If the prefix is \"fooie\",
+                           -- the full name will be \"fooie\" followed by six
+                           -- random alphanumeric characters followed by, if
+                           -- given, the suffix.  Should not contain any path
+                           -- separator characters.
+             -> String     -- ^ File name suffix.  Should not contain any path
+                           -- separator characters.
+             -> IO (FilePath, Handle)
+openTempFile tmp_dir pfx sfx
+    = openTempFile' "openTempFile" tmp_dir pfx sfx False 0o600
 
-{-
+-- | Like 'openTempFile', but opens the file in binary mode. See 'openBinaryFile' for more comments.
+openBinaryTempFile :: FilePath -> String -> String -> IO (FilePath, Handle)
+openBinaryTempFile tmp_dir pfx sfx
+    = openTempFile' "openBinaryTempFile" tmp_dir pfx sfx True 0o600
 
-mkstemps path slen = do
-    withCString path $ \ ptr -> do
-        let c_slen = fromIntegral $ slen+1
-        fd   <- throwErrnoIfMinus1 "mkstemps" $ c_mkstemps ptr c_slen
-        name <- peekCString ptr
-        hdl  <- fdToHandle fd
-        return (name, hdl)
+-- | Like 'openTempFile', but uses the default file permissions
+openTempFileWithDefaultPermissions :: FilePath -> String -> String
+                                   -> IO (FilePath, Handle)
+openTempFileWithDefaultPermissions tmp_dir pfx sfx
+    = openTempFile' "openTempFileWithDefaultPermissions" tmp_dir pfx sfx False 0o666
 
-foreign import ccall unsafe "mkstemps" c_mkstemps :: CString -> CInt -> IO Fd
+-- | Like 'openBinaryTempFile', but uses the default file permissions
+openBinaryTempFileWithDefaultPermissions :: FilePath -> String -> String
+                                         -> IO (FilePath, Handle)
+openBinaryTempFileWithDefaultPermissions tmp_dir pfx sfx
+    = openTempFile' "openBinaryTempFileWithDefaultPermissions" tmp_dir pfx sfx True 0o666
 
--}
+badfnmsg :: String
+badfnmsg = "openTempFile': Template string must not contain path separator characters: "
 
+openTempFile' :: String -> FilePath -> String -> String -> Bool -> CMode
+              -> IO (FilePath, Handle)
+openTempFile' loc tmp_dir pfx sfx binary mode
+    | pathSeparator `elem` pfx
+    = fail $ badfnmsg++pfx
+    | pathSeparator `elem` sfx
+    = fail $ badfnmsg++sfx
+    | otherwise = findTempName
+  where
+    findTempName = do
+      filename <- mkTempFileName tmp_dir pfx sfx
+      r <- openNewFile filename binary mode
+      case r of
+        FileExists -> findTempName
+        OpenNewError errno -> ioError (errnoToIOError loc errno Nothing (Just tmp_dir))
+        NewFileCreated fd -> do
+          (fD,fd_type) <- FD.mkFD fd ReadWriteMode Nothing{-no stat-}
+                          False{-is_socket-}
+                          True{-is_nonblock-}
+
+          enc <- getLocaleEncoding
+          h <- mkHandleFromFD fD fd_type filename ReadWriteMode False{-set non-block-} (Just enc)
+
+          return (filename, h)
+
+mkTempFileName :: FilePath -> String -> String -> IO String
+mkTempFileName dir pfx sfx = do
+  let rs = filter isAlphaNum ['0'..'z']
+      maxInd = length rs - 1
+      rchoose = do
+        i <- randomRIO (0, maxInd)
+        return (rs !! i)
+  rnd <- sequence $ replicate 6 rchoose
+  return $ dir </> pfx ++ rnd ++ sfx
+
+data OpenNewFileResult
+  = NewFileCreated CInt
+  | FileExists
+  | OpenNewError Errno
+
+openNewFile :: FilePath -> Bool -> CMode -> IO OpenNewFileResult
+openNewFile filepath binary mode = do
+  let oflags1 = rw_flags .|. o_EXCL
+
+      binary_flags
+        | binary    = o_BINARY
+        | otherwise = 0
+
+      oflags = oflags1 .|. binary_flags
+  fd <- withFilePath filepath $ \ f ->
+          c_open f oflags mode
+  if fd < 0
+    then do
+      errno <- getErrno
+      case errno of
+        _ | errno == eEXIST -> return FileExists
+#ifdef mingw32_HOST_OS
+        -- If c_open throws EACCES on windows, it could mean that filepath is a
+        -- directory. In this case, we want to return FileExists so that the
+        -- enclosing openTempFile can try again instead of failing outright.
+        -- See bug #4968.
+        _ | errno == eACCES -> do
+          withCString filepath $ \path -> do
+            -- There is a race here: the directory might have been moved or
+            -- deleted between the c_open call and the next line, but there
+            -- doesn't seem to be any direct way to detect that the c_open call
+            -- failed because of an existing directory.
+            exists <- c_fileExists path
+            return $ if exists
+              then FileExists
+              else OpenNewError errno
+#endif
+        _ -> return (OpenNewError errno)
+    else return (NewFileCreated fd)
+
+#ifdef mingw32_HOST_OS
+foreign import ccall "file_exists" c_fileExists :: CString -> IO Bool
+#endif
+
+-- XXX Copied from GHC.Handle
+std_flags, output_flags, rw_flags :: CInt
+std_flags    = o_NONBLOCK   .|. o_NOCTTY
+output_flags = std_flags    .|. o_CREAT
+rw_flags     = output_flags .|. o_RDWR
+
 -- ---------------------------------------------------------------------
 -- | create a new temp file, returning name and handle.
 -- bit like the mktemp shell utility
@@ -126,10 +237,8 @@
 
 mkTempIn :: String -> IO (String, Handle)
 mkTempIn tmpd = do
- -- XXX    (tmpf,hdl)  <- mkstemps (tmpd++"/MXXXXXXXXX.hs") 3
-
-        (tmpf, hdl) <- openTempFile tmpd "MXXXXX.hs"
-        let modname = mkModid $ dropSuffix tmpf
+        (tmpf, hdl) <- openTempFile tmpd "Hsplugins" ".hs"
+        let modname = mkModid tmpf
         if and $ map (\c -> isAlphaNum c && c /= '_') modname
                 then return (tmpf,hdl)
                 else panic $ "Illegal characters in temp file: `"++tmpf++"'"